I get general impressions from Metacritic, especially when I have no chance to try it beforehand (which will become obsolete with Share Play) it mostly affects when I will get a game I'm interested in, not whether to buy it or not. I'm getting games with low meta if I was interested before.
Sometimes I check games I otherwise wouldn't if they have 90+ meta.
So it is happening...PS4 preorder.
Greatness Awaits!